Automatic wagon-brake.



No. 809,151. Y PATENTED JAN 2, 1906.

E. F. VEATGH'.

AUTOMATIC WAGON BRAKE.

APPLICATION. FILED JUNE 3, 1905.

lllllllllllllll! ATTORNEYS PATENT OFFICE.

EVERTT FRANK .VEATCH, OF PALCO, KANSAS.

AUTOMATIC WAGON-BRAKE.

Specification of Letters Patent.

Patented Jan. 2, 1906.

Application filed June 3,1905. Serial No. 263,578.

Ton/ll whom, it may concern.- Be it known that I, EVERTT FRANK VEAToH, acitizen of the United States, and a resident of Palco, in the county ofRooks and State of Kansas, have invented certain new and usefulImprovements in Automatic Wagon-Brakes, of which the following is aspecification. 1

My invention is an improvement in auto? matic wagon-brakes; and itconsists in certain novel constructions and combinations of partshereinafter described and claimed.

Referring to the drawings, forming a part hereof, Figure l-is a planview of a wagon provided with my improved brake, the bed being removed.Fig. 2 is a longitudinal view of the housing for the doubletree. Fig. 3is an enlarged detail of the to gle-levers, and Fig. 4 is an enlargeddetail 0 the connection of the cable with the rods of the toggle-levers.

In the practical application of my invention I provide a wagon ofordinary construction comprising the front and rear axles A A, the frontand rear hounds a a, and coupling-pole a The tongue B is connected tothe front hounds in the usual manner, and upon the upper surface thereofis arranged a housing-C, in whichis mounted the double tree D,transversely of the tongue and slidable longitudinally thereon withinthe hous- IA block 0 is pivotally mounted in that end of the housingnearest to the wagon in an opening 0 in the upper face of the housingand is of sufficient len th to drop in behind the doubletree when t esame is at the forward end of the housing. A pin d in the doubletreeengages a slot in the top of the housing and is provided with a widehead engaging the upper surface of the housing to retain the doubletreein proper transverse relation to the tongue. When the block 0 iselevated, the doubletree is free to move backward and forward in thehousing. 1

A brake-beam E, provided at either end with a brake-shoe e, is arrangedadjacent to the rear axle and is connected thereto by pairs ofoppositely-disposed toggle-levers F F at either end of the brake-beam.The toggle-levers comprise the rear arms f, pivoted to the rear axle,and the forward arms f pivoted to the brake-beam. Rods f 2 f 3 connectthe corresponding joints of the pairs of levers, and the toggle-levers Gconnect the joints of the respective pairs of levers. A

rod 9 connects the joints of the last-named toggle-levers and isprovided with a pulley g arranged centrally thereof. The toggle-levers FF form a diamond-shaped frame connecting the brake-beam to the rearaxle, and the toggle-levers G are bent forwardly, a cross-sectionthrough the rods f 2 f and g being triangular in outline. A cable H issecured to a clevis (1, attached to the ends of the pin (1, and extendsbackwardly through a circular opening 0 in the housing under the pulleyg and over the rod f downward under the rod f and forward to the pulley9 to which it is secured after partially encircling the same. Springs Iare secured to the clevises '2', at either end of the brake-beam and areconnected with a screw-threaded rod i engaging a screw-threaded openingin the rear axle and provided with a crank '5 for manipulating the rod.

.The operation of my improved brake is entirely automatic. When tractiveforce is exerted upon the doubletree, the cable is drawn forward, whichforces the rods f 2 f 3 together, extending the toggles and .releasingthe brake from the wheel. When the wagon starts down an incline and thetraction upon the doubletree is relaxed, the springs draw the brake-beambackwardly toward the axle, breaking the toggle-levers and forcing thebrake into contact with the wheels. In backing, the block 0 is droppeddown into the housing behind the doubletree, thus retaining it in itsforward position and with the brake relaxed. By means of thescrewthreaded rods the strength of the springs may be regulated to anydesired degree of braking force.

The brake may be easily appliedto an ordinary wagon and may be used withor without a bed, being equally efiicient in both cases. It is simple inconstruction, entirely automatic in action, and is not liable to get outof order. Since considerable strain is brought to bear upon no part, thedanger of breakage is reduced to a minimum.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a wagon-brake, the combination of the front and rear axles, atongue connected with the front axle, a housing on the tongue providedwith an opening through its upper face, a doubletree slidably mounted inthe housing, a block pivoted in the opening in the housing for retainingthe doubletree in its forward position, a brake-beam supported IIOadjacent to the rear axle, brake-shoes at either end of the beam, pairsof oppositelydisposed toggle-levers connecting the ends of thebrake-beam with the rear axle, rods connecting the joints of thecorresponding levers, toggle-levers connecting the joints of therespective pairs of levers, a rod connecting the joints of thelast-named toggle-levers, a pulley on the rod, a cable secured to thepulley on the last-named rod and passing around the first-named rods andunder the pulley to the doubletree, a spring secured to the brake-beam,a screw-threaded rod traversing the rear axle and connected with thespring, and a crank for manipulating the rod.

2. In a wagon-brake, the combination of the front and rear axles, atongue connected with the front axle, a doubletree slidably mounted onthe tongue, means for retaining the doubletree in its forward position,a brakebeam supported adjacent to the rear axle, brake-shoes at eitherend of the beam, pairs of oppositely-disposed toggle-levers connectingthe ends of the brake-beam with the rear axle, rods connecting thejoints of the corresponding levers, toggle-levers connecting the.

joints of the respectlve pairs of levers, a rod connecting the joints ofthe last-named toggle-levers, a cable encircling the rods and connectedto the doubletree, a spring connecting the brake-beam with the rearaxle, and means for adjusting the spring.

3. In a wagon-brake, the combination with the front and rear axle, atongue connected with the front axle, a doubletree slidably mounted onthe tongue, means for maintaining the doubletree in its forwardposition, a brake-beam supported adjacent to the rear axle,toggle-levers connecting the ends of the brake-beam with the rear axle,means for maintaining the toggle levers normally broken, and meansconnecting the doubletree and the toggle-levers for extending the same.

4. In a wagon-brake, the combination of the front and rear axle, thetongue connected with the front axle, a doubletree slidably mounted onthe tongue, a brake supported adjacent to the rear axle, toggle-leversconnecting the brake with the rear axle, means for maintaining the.toggle-levers normally broken, and means connecting the doubletree andthe toggle-levers for extending the same.

5. In a wagon-brake, the combination with the front and rear axles, thetongue connected with the front axle, a doubletree slidably mounted onthe tongue, braking mechanism supported adjacent to the rear axle,togglelevers connecting the braking mechanism with the rear axle, meansfor maintaining the togglelevers normally broken, and means connectedwith the doubletree for extending the same.

6. In a wagon-brake the combination with the front and rear axles of adoubletree associated with the front axle, braking mechanism,toggle-levers connecting the braking mechanism with the rear axle, meansfor maintaining the toggle levers normally broken, and means wherebytraction on the doubletree may extend the toggle-levers to relax thebrake.

7. In a wagon-brake, the combination with the front and rear axles, anormally operative brake, toggle-levers connecting the brake with therear axle, and means whereby traction on the doubletree may extend thetoggle-levers to relax the brake.

EVERTT FRANK VEATOH.

WVitnesses:

S. A. YOUNG, CHAS. VEATCH.

